Journal article

A facile one-step method for synthesising a parallelogram-shaped single-crystalline ZnO nanosheet

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Publication Details

Author list: ZHANG R, OLIN H, HUMMELGÅRD M, ZHANG R, HUMMELGÅRD M, OLIN H

Publisher: Elsevier

Publication year: 2014

Start page: 1

End page: 6

Number of pages: 6

ISSN: 0921-5107

DOI: http://dx.doi.org/10.1016/j.mseb.2013.12.009

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Abstract

ZnO nanosheets are found to be useful in many fields such as sensors and electronics. Non-uniform- shaped ZnO nanosheets are synthesised using several methods; moreover, uniformly shaped ones are less studied. Here, we report on a simple one-step method to synthesise parallelogram-shaped single- crystalline ZnO nanosheets. By controlling the reaction of Zn(NO3 )2 and hexamethylenetetramine (HMT) in ethanol, average 30 nm-thick nanosheets with a high aspect ratio of 1:100 were obtained. The par- allelogram angles were between 97? and 99?. Transmission electron microscopy (TEM) diffraction and X-ray diffraction (XRD) showed that the nanosheets were wurtzite-structured single-crystalline ZnO. Moreover, a growth mechanism of these parallelogram nanosheets is suggested based on the experi- mental results. These results suggest a new simple solution process to synthesise uniformly shaped ZnO nanosheets allowing large-scale production to be employed.


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